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Low note Bridge / Single ended amplifier operation.
The 2013.01 has been designed for usage with 4 as well as 8 ohm woofers. The low note amplifier consists of a single
LM3886 which is capable of delivering 68watts into a 4 ohm load. Especially for usage with 8ohm drivers the 2013.01
has been equipped with an optional LM3886 to allow the low note amplifier to be operated in bridge mode.
Incase the 2013.01 is used with a 8 ohm woofer
the low note LM3886 amplifier can be set to
bridged operation by adding an extra LM3886
at position IC5.
By default the 2013.01 board is set to single
ended operation with position IC5 left
unpopulated and pin 3 and 7 hardwired.
To modify the 2013.01 into bridged mode
operation remove the wire between pin 3 and 7
and populate position IC5 with a LM3886.
Before changing from single ended to bridged
mode please read Power ratings to ensure safe
operation.
http://mfb.piratelogic.nl/data/docs/2013.01.usermanual.en.pdf – update 27/11/2013@11:19:31
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